A highly active heterogeneous catalyst,Pd nanoparticles@g-C_(3)N_(4)/SiO_(2) with tunable band structure,was successfully fabricated by a sol–gel method.The nanocomposite catalyst exhibits an extraordinary hydrogen p...A highly active heterogeneous catalyst,Pd nanoparticles@g-C_(3)N_(4)/SiO_(2) with tunable band structure,was successfully fabricated by a sol–gel method.The nanocomposite catalyst exhibits an extraordinary hydrogen production rate from formic acid which leads to a high turnover frequency(TOF)of around 306 mol H_(2) per mole Pd per h after 10 min.The characterization analysis shows that the bandgap of the g-C_(3)N_(4)/SiO_(2) support widens with decreasing synthesis temperature,which in turn allows tuning of the band structure by simply controlling the synthesis temperature.After Pd nanoparticles were embedded,the nanocomposite Pd@g-C_(3)N_(4)/SiO_(2) showed excellent catalytic performance in the dehydrogenation of formic acid at 303.15 K,and the lower the synthesis temperature of the catalyst,the higher its performance.展开更多
基金supported by National Basic Research Program of China(2013CB934102)National Natural Science Foundation of China(21331004,21301116)SJTU-MPI partner group,SJTU-UM joint grant,Shanghai Eastern Scholar Program and Shanghai Rising-Star Program(16QA1402100).
文摘A highly active heterogeneous catalyst,Pd nanoparticles@g-C_(3)N_(4)/SiO_(2) with tunable band structure,was successfully fabricated by a sol–gel method.The nanocomposite catalyst exhibits an extraordinary hydrogen production rate from formic acid which leads to a high turnover frequency(TOF)of around 306 mol H_(2) per mole Pd per h after 10 min.The characterization analysis shows that the bandgap of the g-C_(3)N_(4)/SiO_(2) support widens with decreasing synthesis temperature,which in turn allows tuning of the band structure by simply controlling the synthesis temperature.After Pd nanoparticles were embedded,the nanocomposite Pd@g-C_(3)N_(4)/SiO_(2) showed excellent catalytic performance in the dehydrogenation of formic acid at 303.15 K,and the lower the synthesis temperature of the catalyst,the higher its performance.
